System for terminating out-of-control polymerization reaction process

Abstract

The utility model discloses a system for terminating the out-of-control of polymerization reaction process, which comprises a storage tank and a reaction kettle, the storage tank is communicated with the reaction kettle through a conveying pipeline, a polymerization inhibitor is arranged in the storage tank, and a first valve is arranged on the conveying pipeline. According to the system for terminating out-of-control of the polymerization reaction process, the temperature and the air pressure in the reaction kettle are detected, the first valve and the second valve are controlled in a feedback mode, the nitrogen input pipeline inputs nitrogen into the storage tank, the pressure of the storage tank is increased, and when the temperature in the reaction kettle is too high, the first valve is automatically opened; the polymerization inhibitor is quickly pressed into the reaction kettle by the pressure of nitrogen in the storage tank, and the polymerization inhibitor and the reaction materials are mixed at any time when the stirring mechanism stirs, so that the purpose of forcibly blocking the reaction is achieved, the reaction is terminated, and the consequence of out-of-control reaction is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of reaction systems, and in particular relates to a system for terminating a runaway polymerization reaction process. Background Art

[0002] During the process of adding materials to the reactor for reaction, the reaction system releases a large amount of heat continuously and rapidly, causing the temperature inside the reactor to rise sharply. After exceeding the system control limit, the materials explode and cause the system pressure to rise sharply. The entire reaction system cannot be controlled, resulting in material spraying, reactor damage and even combustion and explosion.

[0003] In the related art, generally only the cooling system and the temperature control system are used to ensure the cooling of the reactor to prevent the temperature from being too high. However, when the cooling system fails, it is difficult to prevent the destruction of the reactor even if the reactor is stopped when the temperature is too high. Therefore, a reaction system that does not rely on the cooling system to prevent the reactor from exploding is needed. Utility Model Content

[0004] The utility model aims to provide a system for terminating a runaway polymerization process, which does not rely on a cooling system to prevent the reactor from exploding.

[0005] To this end, the utility model provides a system for terminating a runaway polymerization reaction process, comprising: a storage tank and a reactor, wherein the storage tank is connected to the reactor via a delivery pipeline, a polymerization inhibitor is provided in the storage tank, and a first valve is provided on the delivery pipeline.

[0006] Preferably, an air inlet is provided at the top of the storage tank, and a discharge port is provided at the bottom of the storage tank.

[0007] Preferably, a nitrogen input pipeline is provided on the top of the storage tank, and the nitrogen input pipeline is connected to the air inlet.

[0008] Preferably, a second valve is provided on the nitrogen input pipeline.

[0009] Preferably, a pressure transmitter is further included, and the pressure transmitter is used to detect the pressure in the storage tank.

[0010] Preferably, the pressure transmitter is electrically connected to the second valve.

[0011] Preferably, a feed port is provided on the top of the reactor, and the feed port is connected to the conveying pipeline.

[0012] Preferably, a temperature transmitter is further included, and the temperature transmitter is used to detect the temperature in the reactor.

[0013] Preferably, the temperature transmitter is electrically connected to the first valve.

[0014] Preferably, a stirring mechanism is provided in the reactor.

[0015] Beneficial effects:

[0016] 1. The utility model provides a system for terminating a runaway polymerization reaction process. By detecting the temperature and air pressure in the reactor, a first valve and a second valve are feedback-controlled. A nitrogen input pipeline inputs nitrogen into a storage tank to increase the pressure of the storage tank. When the temperature in the reactor is too high, the first valve automatically opens, and the nitrogen pressure in the storage tank quickly presses the polymerization inhibitor into the reactor. When the stirring mechanism stirs, the polymerization inhibitor and the reaction materials are mixed at any time to achieve the purpose of forcibly blocking the reaction, terminating the reaction, and avoiding the consequences of a runaway reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 The utility model provides a piping diagram of a system for terminating a runaway polymerization reaction process.

[0019] In the figure, 1-storage tank, 11-air inlet, 12-discharge port, 2-reactor, 21-feed port, 22-stirring mechanism, 3-delivery pipeline, 31-first valve, 4-nitrogen input pipeline, 41-second valve, 5-pressure transmitter, 6-temperature transmitter. DETAILED DESCRIPTION

[0020] The present invention can be more easily understood by referring to the following detailed description of the preferred embodiments of the present invention and the included Examples. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as commonly understood by one of ordinary skill in the art to which the present invention belongs. In the event of any conflict, the definitions in this specification shall prevail.

[0021] Example 1:

[0022] Provides the following for completion Figure 1 The system shown in the figure is a system for terminating a runaway polymerization reaction process, comprising: a storage tank 1 and a reactor 2, wherein the storage tank 1 is connected to the reactor 2 via a delivery pipeline 3, a polymerization inhibitor is provided in the storage tank 1, and a first valve 31 is provided on the delivery pipeline 3, wherein the first valve 31 is a solenoid valve.

[0023] An air inlet 11 is provided at the top of the storage tank 1, and a discharge port 12 is provided at the bottom of the storage tank 1. A nitrogen input line 4 is provided at the top of the storage tank 1, and the nitrogen input line 4 is connected to the air inlet 11. A second valve 41 is provided on the nitrogen input line 4, and the second valve 41 is a solenoid valve.

[0024] The storage tank 1 further includes a pressure transmitter 5 for detecting the pressure in the storage tank 1 . The pressure transmitter 5 is electrically connected to the second valve 41 .

[0025] A feed port 21 is provided on the top of the reactor 2, and the feed port 21 is connected to the conveying pipeline 3. A stirring mechanism 22 is provided in the reactor 2.

[0026] The reactor 2 further includes a temperature transmitter 6 for detecting the temperature in the reactor 2 . The temperature transmitter 6 is electrically connected to the first valve 31 .

[0027] Working Principle: Pressure transmitter 5 detects the pressure within storage tank 1 and uses feedback to control the opening and closing of second valve 41. Nitrogen inlet pipeline 4 delivers nitrogen to storage tank 1 to maintain a certain pressure. The materials react within reactor 2. When temperature transmitter 6 detects that the temperature of reactor 2 is too high, exceeding the limit temperature for a period of time and remains uncontrolled, first valve 31 opens. The nitrogen pressure within storage tank 1 rapidly presses the polymerization inhibitor in storage tank 1 into reactor 2. Stirring mechanism 22 stirs the inhibitor and rapidly mixes the reaction materials, forcibly blocking the reaction and terminating it to prevent runaway reaction.

Claims

1. A system for terminating a runaway polymerization process, characterized in that: include: A storage tank and a reactor, wherein the storage tank is connected to the reactor through a delivery pipeline, a polymerization inhibitor is provided in the storage tank, and a first valve is provided on the delivery pipeline.

2. A system for terminating a runaway polymerization process according to claim 1, characterized in that: An air inlet is provided at the top of the storage tank, and a discharge port is provided at the bottom of the storage tank.

3. A system for terminating a runaway polymerization process according to claim 2, characterized in that: A nitrogen input pipeline is provided on the top of the storage tank, and the nitrogen input pipeline is communicated with the air inlet.

4. A system for terminating a runaway polymerization process according to claim 3, characterized in that: A second valve is provided on the nitrogen input pipeline.

5. A system for terminating a runaway polymerization process according to claim 4, characterized in that: The device also includes a pressure transmitter for detecting the pressure in the storage tank.

6. A system for terminating a runaway polymerization process according to claim 5, characterized in that: The pressure transmitter is electrically connected to the second valve.

7. A system for terminating a runaway polymerization process according to claim 3, characterized in that: A feed port is provided on the top of the reactor, and the feed port is communicated with the conveying pipeline.

8. A system for terminating a runaway polymerization process according to claim 1, characterized in that: The device also includes a temperature transmitter, which is used to detect the temperature in the reactor.

9. A system for terminating a runaway polymerization process according to claim 8, characterized in that: The temperature transmitter is electrically connected to the first valve.

10. The system for terminating a runaway polymerization process according to claim 1, wherein: A stirring mechanism is provided in the reactor.

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